* {
    margin: 0;
    padding: 0;
}

html {
    background-color: #f5f5f5;
}

.about {
    width: 100%;
    height: 1700px;
    background: pink;
    padding: 100px 0px;
}

.about-center {
    width: 1170px;
    height: 1788px;
    background: skyblue;
    margin: 0px auto;
}

.about-left {
    width: 674px;
    height: 1588px;
    background: white;
    padding: 50px 38px;
}

.about-right {
    width: 300px;
    height: 360px;
    background: white;
    padding: 35px 30px;
    position: relative;
    left: 780px;
    top: -1688px;
    margin-bottom: 30px;
}

.about-head {
    width: 100%;
    height: 72px;
    background: red;
    line-height: 100px;
    border-bottom: 1px solid gray;
    letter-spacing: 2px;
    font-size: 15px;
    padding-bottom: 36px;
    margin-bottom: 36px;
}

.about-text {
    width: 100%;
    height: 66px;
    font-size: 16px;
    background: orange;
    line-height: 30px;
    margin-bottom: 30px;
}

.about-img {
    width: 100%;
    height: 340px;
    background-image: url(../img/about-img.jpg);
    background-size: 674px 340px;
    margin-bottom: 40px;
}

.wei {
    width: 100%;
    height: 55px;
    margin-bottom: 5px;
    text-align: left;
    line-height: 55px;
    font-size: 19px;
    font-weight: 500;
    border-bottom: 1px solid gray;
}

.wei-code {
    width: 100%;
    height: 300px;
    background-image: url(../img/code.jpg);
    background-size: 300px 300px;
    margin: 23px 0px;
}

.right-text {
    width: 300px;
    height: 600px;
    background: white;
    position: relative;
    top: -1688px;
    left: 780px;
    padding: 35px 30px;
    margin-bottom: 30px;
}

.special {
    width: 100%;
    height: 55px;
    margin-bottom: 5px;
    text-align: left;
    line-height: 55px;
    font-size: 19px;
    font-weight: 500;
    border-bottom: 1px solid gray;
}

.special-img1, .special-img2, .special-img3 {
    width: 100%;
    height: 170px;
    position: relative;
    top: 10px;
}

.special-img1 {
    background-image: url(../img/img11.jpg);
    background-size: 100% 170px;
}

.special-img2 {
    top: 25px;
    background-image: url(../img/img21.jpg);
    background-size: 100% 170px;
}

.special-img3 {
    top: 40px;
    background-image: url(../img/img31.jpg);
    background-size: 100% 170px;
}

.special-look {
    width: 100%;
    height: 170px;
    background: transparent;
    position: relative;
}

.special-position1 {
    top: -1245px;
}

.special-position2 {
    top: -1230px;
}

.special-position3 {
    top: -1215px;
}

.look {
    height: 35px;
    width: 88px;
    cursor: pointer;
    border: 1px solid #fff;
    border-radius: 25px;
    text-align: center;
    line-height: 35px;
    position: relative;
    left: 110px;
    top: 330px;
    font-size: 14px;
    color: #fff;
}

.look:hover {
    border: 1px solid #fff;
    background-color: white;
    color: black;
}

.mask {
    width: 100%;
    height: 170px;
    background: gray;
    position: relative;
    opacity: 0.5;
}

.mask:hover {
    opacity: 0.6;
}

.see {
    font-size: 17px;
    text-align: center;
    position: relative;
    left: 50px;
    top: 296px;
    font-weight: bolder;
    cursor: pointer;
    color: #fff;
}